| Cosmas Ndeti | |
| Nationality: | Kenyan |
| Birth Date: | 24 November 1971 |
| Father: | --> |
| Sport: | Athletics |
| Event: | Marathon |
Cosmas Ndeti (born 24 November 1971) is a three-time winner of the Boston Marathon. He was the winner of the 1993, 1994, and 1995 races. He set the course record in 1994 with a time of 2:07:15, which was also the best marathon performance in 1994.[1] That course record stood for 12 years until it was broken by one second when Robert Kipkoech Cheruiyot, a fellow Kenyan, won the 2006 race.
He received a three-month ban for doping, after failing a test for ephedrine at the 1988 IAAF World Cross Country Championships. This made him the first doping ban case in Kenyan history.[2]
| Representing | ||||||
|---|---|---|---|---|---|---|
| 1990 | World Junior Championships | Plovdiv, Bulgaria | bgcolor=gold | 1st | 20 km road run | 59:42 |
| 1992 | Newcastle, United Kingdom | 4th | Half marathon | 1:01:34 | ||
| Honolulu Marathon | Honolulu, Hawaii | bgcolor=silver | 2nd | Marathon | 2:14:28 | |
| 1993 | Stuttgart, Germany | - | Marathon | DNF | ||
| Boston, United States | bgcolor=gold | 1st | Marathon | 2:09:33 | ||
| Honolulu Marathon | Honolulu, Hawaii | bgcolor=silver | 2nd | Marathon | 2:13:40 | |
| 1994 | Boston Marathon | Boston, United States | bgcolor=gold | 1st | Marathon | 2:07:15 |
| 1995 | Boston Marathon | Boston, United States | bgcolor=gold | 1st | Marathon | 2:09:22 |
| 1996 | Boston Marathon | Boston, United States | 3rd | Marathon | 2:09:51 | |
| New York City Marathon | New York City, United States | 6th | Marathon | 2:11:53 | ||
| 1997 | Athens, Greece | - | Marathon | DNF | ||
| Fukuoka Marathon | Fukuoka, Japan | 6th | Marathon | 2:11:47 | ||
| 2000 | Nagano Olympic Commemorative Marathon | Nagano, Japan | 3rd | Marathon | 2:12:52 | |